Where does “kazatsky” come from?

kazatsky (English) comes from Russian каза́цкий, from Russian каза́к, from Old East Slavic козакъ, from Kazakh қазақ, from Persian ـستان, from Middle Persian -stʾn', from Proto-Indo-Iranian stáHnam, from Proto-Indo-European stéh₂-no-m — to stand.

Ancestry of “kazatsky”, step by step

StepLanguageWordMeaning
1Russianказа́цкийCossack, cossack
2Russianказа́кCossack
3Old East SlavicкозакъCossack
4KazakhқазақKazakh
5Persianـستان-istan, -estan, -stan
6Middle Persian-stʾn'makes nouns of places; of indeterminate function
7Proto-Indo-IranianstáHnamthe act of standing; position, location, place
8Proto-Indo-Europeanstéh₂-no-m
9Proto-Indo-Europeansteh₂-to stand
Every word from Proto-Indo-European steh₂-Every word from Proto-Indo-European stéh₂-no-mEvery word from Middle Persian -stʾn'